Hose coupling



Aug. 2, 1938. M P WHlTNEY 2,125,477

HOSE COUPLING Filed May 4, 1957 INV ENTOR.

U11/Less; I MM w, MM f ATTORNEY.

Patented tug. 2, 1938 J STATES PATENT OFFICE l HOSE ooUPLING Maurice P.Whitney, Elmira, N. Y., assignor to Eclipse Machine Company, Elmira, N.Y., a corporation of New York Application May 4,1937, Serial No. 140,624

Claims.

Various types of quick detachable hose couplings have been developed andfound commercial vacceptancebut such couplings have in general been moreor less specializedl in character in accordance with the type ofinstallation in which they are employed. In particular there is a lackof commercial couplings of this type which are interchangeably adaptablefor use with conduits for either vacuum or moderate pressure.

It is an object of the present invention to provide a novel quickdetachable hose coupling which is'simpie and economical in constructionand efiicient and reliable in operation. l

It is another object to provide such a device which is readily operableby very simple manipulation, requiring no twisting or rotation of anykind.

Another object is to provide such a device which is equally well adaptedfor use in vacuum lines and in lines carrying moderate positivepressures.

Further objects andadvantages will be apparent from the followingdescription taken in connection with the' accompanying drawing in which:

Fig. l isa side elevation partly in section of a coupling embodying apreferred 4form of'the in` vention; l

Fig. 2 is an end view .of the same;

3 is a view` similar to Fig. lshowing th parts in unlocked and partiallydisassembled re- I. The end of the nipple is preferably beveled asindicated at 5 to facilitate entry into the socket. v y

A socket member 8 is provided with an interior cylindrical surface 1adapted to loosely fit the por' tion 2 of the nipple and a secondcylindrical surface 8 adapted to receive the portion 3 of the nipple.Packing means illustrated in the form of a ring 9 oi' rubber or othersuitable material is mounted in a groove II in the socket in position tobear on the portion 3 of the'nipple when thel coupling is assembled.

Releasable locking means for holding the cou-Y pling in assembledrelation is provided in the form of a spring clip I2 (Fig. 5) having acircular opening I3 adapted to embrace the portion 2 of I the nipple andhaving an extension I4 adapted to seat in a longitudinal groove I5 (Fig.4) in the periphery of the socket and provided with lateral- 1yextending portions I6 and II adapted to seat in a circumferentialgrooveI8 in the socket so as to prevent longitudinal withdrawal of the locking.clip from the socket.

A thimble I9 is arranged to bear loosely on the periphery of the socket,having a ange 2| at its outer end provided with an opening 22 to receivethe nipple, and a ange 23 at its inner end arranged to project dntov acircumferential groove 24 in the periphery of the socket, the width ofthe groove 24 being sufficiently greater than the thickness of the ange23 to permit limited longitudinal movement of rthe thimblel on thesocket. The thimble thus acts as a retainer to prevent dislodgment ofthe locking clip I2 from its anchored position on the socket, and longitudinal movement of the thimble to the right Acauses the flange 22thereof to. engage the portion of the locking clip which embracesthe'nipple and straighten it up into a position appro 'mately' at rightangles to the axis of the coupli g. The locking clip I2 by reason of itselasticity i biased toward an inclined position wherein its opening I 3engages and grips the portion 3 of tli'e nipple with a clamping action.v

In the operation of the device, introduction of the nipple into thesocket as illustrated in Fig. 3 causes the locking clip I2 to straightenup suficiently to slide on the portion 2 of'the nipple, whereupon thecylindrical portions of thefnipple enter the corresponding portions ofthe socket, with the packing II bearing snugiy on the portion.3 of thenipple Withdrawal of the nipple from the socket is then prevented by theclamp'- ing engagement of the locking member I2 thereon, whichengagement isI tightened by such efforts. r

When it is desired to release the coupling, it is merely necessary toapply :longitudinal pressure to the thimble I9, preferably by pressure`on the outer a'nge 2I thereof. The flange 2l Vthereupon engages thelocking portion of the clip I2, causing-it to straighten up and releasewithdrawn.

thenipple, whereupon the latter may be readily socket Vand slidablethereon for straightening. up

. release the coupling. s

Although but one embodiment of the invention has been shown nanddescribedin detail, it will be'understood that other embodiments areposi' sible and various changes may be made in the design andarrangement of the parts without departing from the spirit of theinvention as dened in the claims appended hereto.

Whatis claimed is:

1. In a hosecoupling, a socket mernber, a lnipple member" adapted tofltgloosely ltlierein, means for packing the joint gtherebetween, a

locking element anchored to one coupling member having a portion ooselyitting the otherY member and tiitable te grip the same, and a manuallyoperable .thimble surrounding the the gripping portion of the lockingelement tc- 2. In a hose coupling, a socket member, Va

nipple member; adapted to itl loosely therein,

vsaumur?? loosely in said socket, a locking clip anchored to the socketand gripping the nipple, and a thimble surrounding the socket,Yretaining the locking` clip in its anchorage and slidable on the socketto engage and release the gripping portion of the clip. *s

4 .In.a hose coupling, a socket, a nipple having a cylindrical portiontting loosely in said socket, a locking clip anchored to the socket andhaving avportion embracing the cylindrical portion of the nipple andtiltable to grip the same, and a thimbl surrounding the socket.retaining the; locking clip in its anchorage and manually slidable onthesocket to straighten Yup and release the clip from the nipple.

5. n a hose coupling, a socket having internal cylindrical surfacesof'stepped diameters, a nipple having cylindrical surfaces looselyVfitting the 4interior of the socket, a ring',Y of packing materialseated in the socet adjacent the junction of two stepped portionsthereof and snugly fitting the nipple, aglocking spring clip `anchoredto the exterior of tjie socket, embracing the protruding portion of thenipple, land biased to incline and gripthe nipple, and a'thimble looselymounted on the socket enclosing the locking clip and longliitudinallymovable to engage and 'release the c p. MAURICE P. WHITNEY.

